Inheritance diagram for gar::garg4::UpdateDaughterInformation:

Public Member Functions
	UpdateDaughterInformation ()

void	SetParticleList (sim::ParticleList *p)

void	operator() (sim::ParticleList::value_type &particleListEntry)

Private Attributes
sim::ParticleList *	particleList

Detailed Description

Utility class for the EndOfEventAction method: update the daughter relationships in the particle list.

Definition at line 436 of file ParticleListAction.cxx.

Constructor & Destructor Documentation

gar::garg4::UpdateDaughterInformation::UpdateDaughterInformation ( )

inline

Definition at line 440 of file ParticleListAction.cxx.

441 : particleList(0)

442 {}

gar::garg4::UpdateDaughterInformation::particleList

sim::ParticleList * particleList

Definition: ParticleListAction.cxx:479

Member Function Documentation

void gar::garg4::UpdateDaughterInformation::operator() ( sim::ParticleList::value_type & particleListEntry )

inline

Definition at line 444 of file ParticleListAction.cxx.

       {
         // We're looking at this Particle in the list.
         int particleID = particleListEntry.first;
 
         // The parent ID of this particle;
         // we ask the particle list since the particle itself might have been lost
         // ("archived"), but the particle list still holds the information we need
         int parentID = particleList->GetMotherOf(particleID);
 
         // If the parentID <= 0, this is a primary particle.
         if ( parentID <= 0 ) return;
 
         // If we get here, this particle is somebody's daughter.  Add
         // it to the list of daughter particles for that parent.
 
         // Get the parent particle from the list.
         sim::ParticleList::iterator parentEntry = particleList->find( parentID );
 
         if ( parentEntry == particleList->end() ){
           // We have an "orphan": a particle whose parent isn't
           // recorded in the particle list.  This is not signficant;
           // it's possible for a particle not to be saved in the list
           // because it failed an energy cut, but for it to have a
           // daughter that passed the cut (e.g., a nuclear decay).
           return;
         }
         if ( !parentEntry->second ) return; // particle archived, nothing to update
 
         // Add the current particle to the daughter list of the
         // parent.
         simb::MCParticle* parent = (*parentEntry).second;
         parent->AddDaughter( particleID );
       }